/* File: string2num.c

  Convert string to int or double value.

*/

#include <stdio.h>
#include <stdlib.h>

int main() {
   int n ;
   double x ;
   char *str1 = "3.14159" ;
   char *str2 = "6809" ;

   // interpret string as floating point number
   x = atof(str1) ;

   printf("x = %f\n", x) ;

   // interpret string as integer
   n = atoi(str2) ;

   printf("n = %d\n", n) ;

   return 0 ;
}